Ariana Grande and Big Sean are ridiculously in love, and it shows! The "Break Free" singer and the rapper started out as friends, which quickly turned into a romantic relationship when they were both single at the same time. In fact, she recently posted a photo showing herself wearing her guy's T-shirt — which is a pretty big step in their relationship.
Click through to see the story of their love in 15 stages, and let us know what major milestone you think they're going to hit next in the comments!
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